Hi Mark
It shows about 3.5:1 with 3 watts reflected. The LDG appears to work ok
with the zerofive. I also have a Palstar AT1KM which works quite well.
I am assuming I am using the correct un-un. I was told I could switch
to another one for better matching, but, I would lose 160m. Have you
heard of this?
Don - kx9q
Mark Lunday wrote:
Don, I am using the same vertical (although I am using the CG-3000 remote
tuner at the base.) Based upon my understanding, it's probably a limit of
the ATU in the F3K. . My take is that the ATU in the F3K works well, but it
won't do like some of the external tuners that can "tune a wet noodle," nor
was the ATU in the F3K intended to perform as such.
Dumb question from me, just to check something - are you using the correct
un-un network at the base of the vertical? This has been the subject of
extensive discussion on some of the Yahoo groups. Without the un-un or with
the wrong one, the SWR will be fairly high and only a heavy-duty external
tuner would handle it.
If you hit the TUNE button in PowerSWR (with reduced power out of 10 watts),
what kind of SWR does the PowerSDR show?
Mark Lunday
WD4ELG
[email protected]
http://wd4elg.net
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Don Sachnoff
Sent: Tuesday, July 21, 2009 9:58 PM
To: [email protected]
Subject: [Flexradio] 3k ATU Question
I finally got around to setting up the 3k and trying it out. I noticed
on 40m when I press the ATU the 3k goes into transmit for a second and
then drops out and the BYP stays on indicating the ATU cannot match.
The tuner appears to work on 20m. The antenna is a ground mounted
zerofive 43' tall with 20 radials. I am somewhat surprised as I am able
to use a LDG AT-100Pro and it tunes without issue. Could I be missing
something here or is it just the limitation of the ATU?
Don - kx9q
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